公开(公告)号：US3501956A

公开(公告)日：1970-03-24

申请号：US3501956D

申请日：1967-06-28

Applicant: AGENCY IND SCIENCE TECHN

Inventor： YAMAGA JOJI ,  SHIBATA SHUJI

IPC: G01K11/22 ,  G01N29/02 ,  G01K3/10

CPC classification number: G01K11/22 ,  G01N29/02 ,  G01N2291/0217 ,  G01N2291/02881

公开(公告)号：GB1073644A

公开(公告)日：1967-06-28

申请号：GB2760964

申请日：1964-07-03

Applicant: AGENCY IND SCIENCE TECHN

Inventor： YAMAGA JOJI ,  SHIBATA SHUJI

IPC: G01K11/22

Abstract: 1,073,644. Ultrasonic temperature measurement. AGENCY OF INDUSTRIAL SCIENCE & TECHNOLOGY, JAPAN. July 3, 1964, No. 27609/64. Heading H4D. An apparatus for determining the rapidlychanging temperature of a gas comprises a transmitting transducer and at least one spaced receiving transducer arranged in the gas, the temperature being calculated in terms of a frequency difference between transmitted and received sound waves or between sound waves arriving at two receiving transducers. In the embodiment shown in Fig. 1, a generator 5 drives a transmitting transducer 4. Signals from two receiving transducers 2, 3, or from transducers 3 and 4 are compared in frequency by a frequency detector 6 coupled to a computor 20 which calculates the gas temperature at a given time in terms of the temperature at the instant an ultrasonic signal is transmitted or passes transducer 2. A mathematical treatment is given.

公开(公告)号：JPS62134712A

公开(公告)日：1987-06-17

申请号：JP27437385

申请日：1985-12-06

Applicant: AGENCY IND SCIENCE TECHN

Inventor： SHIBATA SHUJI

IPC: G05F3/08

Abstract: PURPOSE:To obtain not only an optical output voltage but also a larger output voltage than an input voltage, by providing a voltage dividing means for generating two voltages of an optional ratio from a single input voltage, and a dividing circuit for executing a dividing operation of two voltages and obtaining as its output an output voltage corresponding to a denomenator input and a numerator input. CONSTITUTION:When a non-stable input voltage e1 is impressed between input terminals 1, 2, an electric current flows through a resistor Rv and a voltage e1' is generated, e1 and e1' are inputted to a dividing circuit and a dividing operation is executed, and in case the voltage e1 has become a denominator input, an output voltage e2 corresponding to e1'/e1 ( 1), the output voltage e2 can be obtained as a larger value than the input voltage e1. In such an operation, even if the input voltage e1 is varied, a ratio e1'/e1 or e1/e1' of two voltage which are generated is constant, therefore, the output voltage e2 becomes stable irrespective of a variation of its input voltage.